The hearing aid
The illustration below shows the hearing aid and ear-
set. The ear-set consists of tubing and an earmould.
1. Microphone cover giving access to the
microphone openings, where the sound enters
the hearing aid.
2. Volume control for fine tuning of volume is
available on some models.
3. Program button
4. On/off switch
5. Battery drawer with nail grip for easy opening
6. Integrated earhook
7. Tubing
8. Earmould
9. Sound bore
10. Relief vent for ventilation of the ear canal
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